Radiant grill heater



FIG. 1 is a front plan view of a radiant grill heater showing my new design;

FIG. 2 is a cross-sectional view thereof;

FIG. 3 is a rear plan view thereof;

FIG. 4 is a first side elevational view thereof;

FIG. 5 is a second side elevational view thereof;.

FIG. 6 is a third side elevational view thereof; and,

FIG. 7 is a fourth side elevational view thereof. 

The ornamental design for a radiant grill heater, as shown and described. 